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Reword the get_phy_device() kerneldoc to be more explicit about how
we probe for the PHY, and what the various return conditions signify.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move the ID check from get_phy_device() into get_phy_c22_id(), which
simplifies get_phy_device(). The ID reading functions are now
responsible for indicating whether they found a PHY or not via their
return code - they must return -ENODEV when a PHY is not present.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
When we decide that a PHY is not present, we do not need to go through
the hoops of setting *phy_id to 0xffffffff, and then return zero to
make get_phy_device() fail - we can return -ENODEV which will have the
same effect.
Doing so means we no longer have to pass a pointer to phy_id in, and
we can then clean up the clause 22 path in a similar way.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rearrange the code to read the PHY IDs, so we don't call get_phy_id()
only to immediately call get_phy_c45_ids(). Move that logic into
get_phy_device(), which results in better readability.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move the Cortina PHY workaround out of the "devices in package" loop;
it doesn't need to be in there as the control flow will terminate the
loop once we enter the workaround irrespective of the workaround's
outcome. The workaround is triggered by the ID being mostly 1's, which
will in any case terminate the loop.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.
This code was detected with the help of Coccinelle and, audited and
fixed manually.
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.
This code was detected with the help of Coccinelle and, audited and
fixed manually.
Addresses-KSPP-ID: https://github.com/KSPP/linux/issues/83
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.
This code was detected with the help of Coccinelle and, audited and
fixed manually.
Addresses-KSPP-ID: https://github.com/KSPP/linux/issues/83
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes. Also, remove unnecessary
variable _size_.
This code was detected with the help of Coccinelle and, audited and
fixed manually.
Addresses-KSPP-ID: https://github.com/KSPP/linux/issues/83
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
If IPv6 is builtin, we do not need an expensive indirect call
to reach icmp6_send().
v2: put inline keyword before the type to avoid sparse warnings.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vishal Kulkarni says:
====================
cxgb4: add support for ethtool n-tuple filters
Patch 1: Adds data structure to maintain list of filters and handles init/dinit
of the same.
Patch 2: Handles addition of filters via ETHTOOL_SRXCLSRLINS.
Patch 3: Handles deletion of filtes via ETHTOOL_SRXCLSRLDEL.
Patch 4: Handles viewing of added filters.
Patch 5: Adds FLOW_ACTION_QUEUE support.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for queue action to steer Rx traffic
hitting the flows to specified Rxq.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support to fetch the requested ethtool n-tuple filters by
translating them from hardware spec to ethtool n-tuple spec.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support to delete ethtool n-tuple filter. Fetch the appropriate
filter region (HPFILTER, HASH, NORMAL) in which the filter exists,
and delete it from the respective region, accordingly.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support to parse and insert ethtool n-tuple filters.
Translate n-tuple spec to flow spec and use the existing tc-flower
offload infra to insert ethtool n-tuple filters.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Allocate and manage resources required for ethtool n-tuple filters.
Also fetch the HASH filter region size and calculate nhash entries.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds a drop frames counter to tc flower offloading.
Reporting h/w dropped frames is necessary for some actions.
Some actions like police action and the coming introduced stream gate
action would produce dropped frames which is necessary for user. Status
update shows how many filtered packets increasing and how many dropped
in those packets.
v2: Changes
- Update commit comments suggest by Jiri Pirko.
Signed-off-by: Po Liu <Po.Liu@nxp.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vishal Kulkarni says:
====================
cxgb4: add support to read/write flash
This series of patches adds support to read/write different binary images
of serial flash present in Chelsio terminator.
V2 changes:
Patch 1: No change
Patch 2: No change
Patch 3: Fix 4 compilation warnings reported by C=1, W=1 flags
Patch 4: No change
Patch 5: No change
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds support to dump flash memory via
ethtool --get-dump
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Update set_flash to flash boot cfg image to flash region
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Update set_flash to flash boot image to flash region
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Update set_flash to flash PHY image to flash region
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Chelsio adapter contains different flash regions and each
region is used by different binary files. This patch adds
support to flash images like PHY firmware, boot and boot config
using ethtool -f N.
The N value mapping is as follows.
N = 0 : Parse image and decide which region to flash
N = 1 : Firmware
N = 2 : PHY firmware
N = 3 : boot image
N = 4 : boot cfg
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>"
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet says:
====================
net: tso: expand to UDP support
With QUIC getting more attention these days, it is worth
implementing UDP direct segmentation, the same we did for TCP.
Drivers will need to advertize NETIF_F_GSO_UDP_L4 so that
GSO stack does not do the (more expensive) segmentation.
Note the two first patches are stable candidates, after
tests confirm they do not add regressions.
v2: addressed Jakub feedback :
1) Added a prep patch for octeontx2-af
2) calls tso_start() earlier in otx2_sq_append_tso()
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Note that like TCP, we do not support additional encapsulations,
and that checksums must be offloaded to the NIC.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add tlen field into struct tso_t, and change tso_start()
to return skb_transport_offset(skb) + tso->tlen
This removes from callers the need to use tcp_hdrlen(skb) and
will ease UDP segmentation offload addition.
v2: calls tso_start() earlier in otx2_sq_append_tso() [Jakub]
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
skb argument of tso_count_descs(), tso_build_hdr() and tso_build_data() can be const.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
size field can be an int, no need for size_t
Removes a 32bit hole on 64bit kernels.
And align fields for better readability.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Transport header size could be 60 bytes, and network header
size can also be 60 bytes. Add the Ethernet header and we
are above 128 bytes.
Since drivers using net/core/tso.c usually allocates
one DMA coherent piece of memory per TX queue, this patch
might cause issues if a driver was using too many slots.
For 1024 slots, we would need 256 KB of physically
contiguous memory instead of 128 KB.
Alternative fix would be to add checks in the fast path,
but this involves more work in all drivers using net/core/tso.c.
Fixes: f9cbe9a556af ("net: define the TSO header size in net/tso.h")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We need to increase TSO_HEADER_SIZE from 128 to 256.
Since otx2_sq_init() calls qmem_alloc() with TSO_HEADER_SIZE,
we need to change (struct qmem)->entry_sz to avoid truncation to 0.
Fixes: 7a37245ef23f ("octeontx2-af: NPA block admin queue init")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Barry Song says:
====================
net: hns3: a bundle of minor cleanup and fixes
some minor changes to either improve the readability or make the code align
with linux APIs better.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Right now they are empty functions for our SoC since hardware can keep
cache coherent, but it is still good to align with streaming DMA APIs
as device drivers should not make an assumption of SoC.
Reviewed-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
disable_irq() after request_irq() is still risk as there is a chance irq
can come after request_irq() and before disable_irq().
this should be done by IRQ_NOAUTOEN flag.
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move the type of buffer address from unsigned char to void
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
since we are using device-managed function, it is unnecessary
to free in probe.
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.
This code was detected with the help of Coccinelle and, audited and
fixed manually.
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
If a valid mac address is present in dt, use that before using
CSR's or a random mac address.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit says:
====================
r8169: smaller improvements again
Series includes a number of different smaller improvements.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
So far we can not configure irq coalescing when link is down. Allow the
user to do this, and assume that he wants to configure irq coalescing
for highest speed. Otherwise the irq rate is low enough anyway.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Relevant chip clocks are disabled in rtl_pll_power_down(), therefore
move calling clk_disable_unprepare() there. Similar for enabling the
clock.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Counters are updated whenever we go down, therefore move the call to
rtl8169_down().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
rtl8169_hw_reset() meanwhile does more than a hw reset, therefore rename
it to rtl8169_cleanup(). In addition move calling napi_disable() to this
function.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
rtl8169_hw_reset() may be called under RTNL lock, therefore switch to
synchronize_net().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the following scenario WoL isn't configured properly:
- Driver is loaded, interface isn't brought up within 10s, so driver
runtime-suspends.
- WoL is set.
- Interface is brought up, stored WoL setting isn't applied.
It has always been like that, but the scenario seems to be quite
theoretical as I haven't seen any bug report yet. Therefore treat
the change as an improvement.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since 9d3679fe0f30 ("r8169: inline rtl8169_make_unusable_by_asic")
this constant isn't used any longer, so remove it.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In case of problems it facilitates the bug analysis if we know whether
DASH is active. Therefore emit a message in probe if this is the case.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.
This code was detected with the help of Coccinelle and, audited and
fixed manually.
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Whenever a buggy NAPI driver returns more than its budget,
we emit a stack trace that is of no use, since it does not
tell which driver is buggy.
Instead, emit a message giving the function name, and a
descriptive message.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.
This code was detected with the help of Coccinelle and, audited and
fixed manually.
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
